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AHCI
AHCI is not official supported on OCZ SSDs and may under some circumstances affect performance, specifically during windows installation. Enabling AHCI can result in higher performance in synthetic benchmarks for SSDs and HDDs alike, but can cause hang-ups and intermittent freezes in SSDs since it allows multiple access requests to compete for a drive that is not made to address re-ordering of commands in the queue. We recommend AHCI is set to disabled in both Windows and in the BIOS.
Native Command Queuing greatly increases the performance of standard rotational drives but it has no bearing on SSDs.

AHCI
AHCI is not official supported on OCZ SSDs and may under some circumstances affect performance, specifically during windows installation. Enabling AHCI can result in higher performance in synthetic benchmarks for SSDs and HDDs alike, but can cause hang-ups and intermittent freezes in SSDs since it allows multiple access requests to compete for a drive that is not made to address re-ordering of commands in the queue. We recommend AHCI is set to disabled in both Windows and in the BIOS.
Native Command Queuing greatly increases the performance of standard rotational drives but it has no bearing on SSDs.

They should get Intel then eh, I've been using my Intel X25 M 80GB G2 for about 10 months and haven't had one single issue; I couldn't count the number of re-installs (with 'clean all' - secure erase) I've done while working on this.

AHCI
AHCI is not official supported on OCZ SSDs and may under some circumstances affect performance, specifically during windows installation. Enabling AHCI can result in higher performance in synthetic benchmarks for SSDs and HDDs alike, but can cause hang-ups and intermittent freezes in SSDs since it allows multiple access requests to compete for a drive that is not made to address re-ordering of commands in the queue. We recommend AHCI is set to disabled in both Windows and in the BIOS.
Native Command Queuing greatly increases the performance of standard rotational drives but it has no bearing on SSDs.

At this time when I test a system i do the following tweaks and NOTHING ELSE..

1) I check the board is in AHCI mode, if no option is available there is nothing you can do.

... (see the link for more)

The SSD forum here has got cross saturation from the gen1 forum where tweaks were needed. Vertex, Agility, Turbo and Summit are all what we call Gen2 and do not need tweaking at all. On the most part win7 in AHCI mode will do all the tweak you need for single disk operation all by its self...it looks like people on the whole have forgotten that part.

Please, take care to post accurate information, we don't want to give the wrong guidance to other viewers.

I followed the tutorial, went into the registry, and tried to edit the value of msachi and noticed that start was already set to 0. I then went into bio and set it to ACHI mode. Upon reboot the computer got to the nice little windows 7 orbs that form the logo and then rebooted. I switched back to IDE, returned to windows figuring I had to download the drivers.

I went to the Asus site and found the Intel Sata drivers. When I tried to install them it said "you do not meet the minimum system requirements" I then went to the intel site and downloaded their "Matrix Storage manager" and "Rapid Storage Technologies" Upon trying to install each of these I got the same "minimum system requirements error".

If the value in the registry was at ' 0 ' to start with, AHCI was already enabled in Windows.

That's what I had figured,

but why then would it just continually reboot when I set it to AHCI mode in the bios?

Something is out of order, if it's not/wasn't set in the BIOS to AHCI, Windows automatically disables the AHCI drivers during OS install.
Do you have a lot of data to lose if you re-install; just asking.

These are the wrong ones, as far as I know; I haven't used this technology.

AHCI : Enable in Windows 7 / Vista

Enable and/or Disable AHCII hope I am not duplicating something here. . . . I did look - Honest!
I ran into an interesting problem and found an easy fix.
First: I wanted to ENABLE AHCI because (supposedly) it improves HDD performance. (It also enables a host of other interesting features.)
I discovered the...

Hardware & Devices

AHCI : Enable in Windows XP after OS installFor info on other OS's take look here:
https://www.sevenforums.com/tutorials/61869-ahci-enable-windows-7-vista.html
You can use this method on Legacy BIOS or uEFI/BIOS firmware.
For this example I am using a PC with uEFI/BIOS firmware & Secure Boot DISABLED.
With a Intel Chip Set.
...

Tutorials

enable AHCI in Windows 7hi...
i found several tutorials to enable the AHCI-driver in win7/vista but the registry keys don't match mine...
the tutorial is as following:
1. Exit all Windows-based programs. 2. Click Start, type regedit in the Start Search box, and then press ENTER. 3. If you receive the User Account...

Hardware & Devices

Windows 7...>SSD....Enable AHCI B4 InstallationOkay I plan on doing a clean install of Windows 7 on my laptop. I have an SSD from crucial.
I know that I need to enable AHCI BEFORE I start the installation of Windows 7...correct?
Now....I saw this Intel website in regards to AHCI.
Intel® Rapid Storage Technology &mdash; Configure the...

Installation & Setup

AHCI to Enable or Not?Hi, I am using a HP Pavillion 180t computer with Window 7(SP-1), IE9 RC. 12GB Ram, Quad Core i7, 3.33Ghz.
I do not have AHCI enabled based upon the Tutorial to do so. Would enableing AHCI be of value to me? If so how? Any help appreciated.